CVE-2025-40019

In the Linux kernel, the following vulnerability has been resolved: crypto: essiv - Check ssize for decryption and in-place encryption Move the ssize check to the start in essiv_aead_crypt so that it's also checked for decryption and in-place encryption.

CVSS v3.1

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.27% chance of exploitation in the next 30 days, 19th percentile

Published

2025-10-24

Updated

2026-05-11

Proof-of-concept exploits (2)

• 0xAtharv/CVE-2025-40019-POC
• xooxo/CVE-2025-40019-Essiv

References

• CVE Record
• NVD entry

Related

• CVE-2023-20938
• CVE-2019-14745
• CVE-2026-35250
• CVE-2025-4000
• CVE-2025-4004
• CVE-2025-3999